Introduction
The Bently Nevada 330703-000-050-10-02-00 3300 XL 11 mm Proximity Probe is a precision non-contact eddy-current sensor designed for continuous measurement of shaft vibration, displacement, and position on critical rotating machinery.
This metric configuration features an M14 × 1.5 mounting thread, 0 mm unthreaded length, 50 mm overall case length, and a 1.0 m integral cable. The 02 connector option specifies a miniature coaxial ClickLoc connector with standard cable, while the final 00 indicates that no additional agency approval option is required.
As part of the 3300 XL 11 mm transducer family, the probe is engineered for applications where dependable shaft-motion information is essential. The 11 mm platform is especially useful for machinery applications requiring an extended measurement range, including radial vibration, axial position, Keyphasor, and other rotating-equipment measurements.
Technical Specifications
The complete 3300 XL 11 mm system uses a compatible probe, extension cable, and Proximitor Sensor. This model provides the sensing element installed near the rotating target.
| Specification | Details |
|---|
| Manufacturer | Bently Nevada |
| Product Family | 3300 XL 11 mm |
| Product Type | Proximity Probe |
| Part Number | 330703-000-050-10-02-00 |
| Probe Model | 330703 |
| Mounting Style | Standard Mount |
| Thread | M14 × 1.5 |
| Armor | Without armor |
| Unthreaded Length | 0 mm |
| Overall Case Length | 50 mm |
| Integral Cable Length | 1.0 m / 3.3 ft |
| Connector Option | 02 |
| Connector | Miniature coaxial ClickLoc |
| Cable Type | Standard cable |
| Agency Approval | 00 — Not required |
| Sensing Technology | Eddy-current |
| Probe Size | 11 mm class |
| Nominal Sensitivity | 100 mV/mil / 3.94 V/mm |
| Linear Measurement Range | Approx. 4 mm / 160 mil |
| Recommended Gap | Approx. 2.5 mm / 100 mil |
| Typical Frequency Response | 0–8 kHz |
| Probe Construction | Stainless-steel industrial construction |
| Cable Construction | 75 Ω triaxial, FEP insulated |
Applications
The 330703-000-050-10-02-00 is intended for non-contact monitoring of rotating shafts and other conductive targets in industrial machinery.
Typical applications include:
-
Steam turbine shaft vibration monitoring
-
Gas turbine vibration monitoring
-
Compressor shaft displacement
-
Generator shaft vibration
-
Pump and motor monitoring
-
Radial shaft vibration measurement
-
Axial/thrust position measurement
-
Turbine differential expansion applications
-
Reciprocating compressor monitoring
-
Keyphasor measurement
-
Tachometer measurement
-
Zero-speed detection
-
Rotor position monitoring
-
Machinery protection systems
-
Continuous condition monitoring
The 3300 XL 11 mm system is designed for measuring position or vibration over a frequency range of approximately 0 to 8 kHz, with radial vibration, position, axial position, and Keyphasor among its typical applications.
For a complete measurement channel, this probe should be paired with the appropriate 3300 XL 11 mm extension cable and Proximitor Sensor. The probe and electronics are designed to operate together as a matched transducer system.
Advantages
Metric Installation Compatibility
The M14 × 1.5 thread makes this model a convenient choice for machinery designed around metric mounting hardware. It can simplify replacement projects where an existing metric probe installation is already in place.
Extended-Range 11 mm Platform
The 3300 XL 11 mm system provides an approximately 4 mm linear range, making it particularly useful where additional displacement range is desirable compared with smaller proximity-probe platforms.
50 mm Case Length
The 50 mm case configuration offers a useful installation length for machinery where a compact but sufficiently extended probe body is required.
Standard 1-Meter Cable
A 1.0 m integral cable provides practical separation between the probe installation point and the extension-cable connection, helping simplify machinery wiring and maintenance.
ClickLoc Connection
The miniature coaxial ClickLoc connector provides a secure, purpose-designed connection for the 3300 XL system. The 02 version is the standard ClickLoc configuration without the separate connector protector specified by the 01 option.
Non-Contact Operation
Eddy-current sensing measures shaft movement without physical contact. This makes the technology well suited to high-speed rotating machinery, where mechanical contact at the sensing location would be undesirable.
Reliable Machinery Monitoring
The probe can provide continuous shaft-motion information for vibration and position monitoring, helping maintenance teams identify abnormal machinery behavior before it develops into a more serious operational problem.
Flexible System Integration
The 3300 XL 11 mm platform can be integrated into machinery-protection and condition-monitoring systems covering vibration, position, axial movement, phase reference, and related measurements.
Technical FAQs
1. What is the Bently Nevada 330703-000-050-10-02-00?
It is a 3300 XL 11 mm Proximity Probe featuring an M14 × 1.5 thread, 50 mm case length, 1.0 m integral cable, standard ClickLoc connector, and no additional agency approval option.
2. What does 330703 represent?
The 330703 base model identifies a 3300 XL 11 mm probe with an M14 × 1.5 thread and no armor.
3. What does “000” mean?
The 000 option specifies a 0 mm unthreaded length.
4. What does “050” indicate?
The 050 option specifies a 50 mm overall probe case length.
5. How long is the integral cable?
The 10 option specifies a 1.0 m (3.3 ft) total cable length.
6. What is the difference between connector options 01 and 02?
Option 01 uses a miniature coaxial ClickLoc connector with connector protector, while option 02 uses the miniature coaxial ClickLoc connector without the connector protector. Both use standard cable in these configurations.
7. What does the final “00” mean?
The final 00 indicates that an additional agency approval option is not required. The alternative 05 configuration is the multiple-approval option.
8. What is the nominal probe gap?
The standard 3300 XL 11 mm system is specified around a 2.5 mm (100 mil) nominal gap under the defined calibration conditions.
9. What is the linear measurement range?
The 3300 XL 11 mm system provides approximately 4 mm (160 mil) of linear measurement range, with a nominal scale factor of approximately 100 mV/mil (3.94 V/mm).
10. Can this model replace any 3300 XL 11 mm probe?
Not necessarily. Even within the 330703 family, case length, unthreaded length, cable length, connector style, cable construction, and approval configuration can differ. The complete part number should be matched against the existing installation before ordering a replacement.
A DCS Q Co., Ltd. - PLC and DCS Industrial Control Equipment Wholesale
